Ubuntu
nux package

  1. Bug #1767468
  2. Comment #6

Comment 6 for bug 1767468

Revision history for this message
Michele (mikelito) wrote : Re: Upgrade from 16.04 to 18.04 disables hardware acceleration on Intel Graphics

Ok I fixed the problem on my system. This has nothing to do with libglvnd but I don't know to which package it should be attributed. Problem (at least for me) seems to be linked to

/etc/X11/Xsession.d/50_check_unity_support

that fails (as I had uninstalled unity after update) and causes Xsession to fall-back on LLVMPipe.
Remove or comment that file and accelerated drivers are back

OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2)

Hope this helps, and that someone more experienced can tag the appropriate package so that the update removes this leftover check.